1 /* ------------------------------------------------------------------
2 * Copyright (C) 1998-2010 PacketVideo
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
14 * See the License for the specific language governing permissions
15 * and limitations under the License.
16 * -------------------------------------------------------------------
18 /****************************************************************************************
19 Portions of this file are derived from the following 3GPP standard:
22 ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
23 Available from http://www.3gpp.org
25 (C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
26 Permission to distribute, modify and use this file under the standard license
27 terms listed above has been obtained from the copyright holder.
28 ****************************************************************************************/
32 ------------------------------------------------------------------------------
35 This file contains all the constant definitions and prototype definitions
36 needed by the L_mac function.
38 ------------------------------------------------------------------------------
41 /*----------------------------------------------------------------------------
42 ; CONTINUE ONLY IF NOT ALREADY DEFINED
43 ----------------------------------------------------------------------------*/
47 /*----------------------------------------------------------------------------
49 ----------------------------------------------------------------------------*/
50 #include "basicop_malloc.h"
52 /*--------------------------------------------------------------------------*/
58 /*----------------------------------------------------------------------------
60 ; Define module specific macros here
61 ----------------------------------------------------------------------------*/
63 /*----------------------------------------------------------------------------
65 ; Include all pre-processor statements here.
66 ----------------------------------------------------------------------------*/
68 /*----------------------------------------------------------------------------
69 ; EXTERNAL VARIABLES REFERENCES
70 ; Declare variables used in this module but defined elsewhere
71 ----------------------------------------------------------------------------*/
73 /*----------------------------------------------------------------------------
75 ----------------------------------------------------------------------------*/
77 /*----------------------------------------------------------------------------
78 ; ENUMERATED TYPEDEF'S
79 ----------------------------------------------------------------------------*/
81 /*----------------------------------------------------------------------------
82 ; STRUCTURES TYPEDEF'S
83 ----------------------------------------------------------------------------*/
85 /*----------------------------------------------------------------------------
86 ; GLOBAL FUNCTION DEFINITIONS
87 ; Function Prototype declaration
88 ----------------------------------------------------------------------------*/
89 #if ((PV_CPU_ARCH_VERSION >=5) && (PV_COMPILER == EPV_ARM_GNUC))/* Instructions for ARM-linux cross-compiler*/
91 static inline Word32 L_mac(Word32 L_var3, Word16 var1, Word16 var2, Flag *pOverflow)
93 register Word32 ra = L_var3;
94 register Word32 rb = var1;
95 register Word32 rc = var2;
98 OSCL_UNUSED_ARG(pOverflow);
100 asm volatile("smulbb %0, %1, %2"
105 asm volatile("qdadd %0, %1, %2"
107 : "r"(ra), "r"(result)
113 #else /* C_EQUIVALENT */
115 __inline Word32 L_mac(Word32 L_var3, Word16 var1, Word16 var2, Flag *pOverflow)
119 result = (Word32) var1 * var2;
120 if (result != (Word32) 0x40000000L)
122 L_sum = (result << 1) + L_var3;
124 /* Check if L_sum and L_var_3 share the same sign */
125 if ((L_var3 ^ result) > 0)
127 if ((L_sum ^ L_var3) < 0)
129 L_sum = (L_var3 < 0) ? MIN_32 : MAX_32;
143 /*----------------------------------------------------------------------------
145 ----------------------------------------------------------------------------*/
150 #endif /* _L_MAC_H_ */